JPS6028017B2 - information processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information processing device capable of testing and diagnosing boats entering and leaving a pond without being connected to a pond device.

Conventionally, when a partner device cannot be obtained during evaluation during design and manufacturing, such as when devices manufactured by different manufacturers are interconnected, a simulator is required to serve as a substitute for the partner device. In addition, if a device does not operate properly during installation or operation at a customer's site, a tester is required to isolate the cause and to check after repair. An object of the present invention is to provide an information processing apparatus that can perform testing and diagnosis even with the above-mentioned asymmetric interface without requiring the above-mentioned simulator or tester.

The apparatus of the present invention is an information processing apparatus having a first boat, a second boat, and a transmission line for transmitting signals between these boats, the apparatus being provided in the first boat and receiving commands from a central processing unit. a first decoding and sending means for decoding a start-up command and sending a signal to the transmission line; and a detection notification means provided in the second boat for sending a signal from the transmission line and notifying the central processing unit of an interrupt. , a second board provided in the second boat, which decodes a command receiving command given from the central processing unit in response to an interrupt notification from the detection notification means and sends a command request signal to the sending means.
and a decoding and transmitting means provided in the first boat and transmitting a command given from the central processing unit to the second boat in response to detection of reception of a command request signal from the second decoding and transmitting means. The present invention is characterized by comprising: a command sending means for sending a command; and a command storage means provided in the second boat and storing a command from the command sending means.

Next, the present invention will be explained with reference to the drawings.

An embodiment of the present invention described below relates to an input/output interface that connects a channel and an input/output equipment control device (hereinafter referred to as IOC). FIGS. IA to ID show the connection form between the channel and the IOC during normal operation, with FIG. IA showing the takoashi connection and FIG. IB showing the zigzag connection.

Referring to Figures IA and DA, reference numerals 10 and 30 are channels, 20, 40, 50 and 60 are IOs.
C is shown respectively. Reference number 1 1, 21, 31, 41
, 51 and 61 indicate the ports of each device, reference numerals 29, 49, 59 and 69 indicate input/output interfaces, and the arrows attached thereto indicate the direction from the upper device (channel) to the lower device (IOC).

This input/output interface 29, 49, 59 and 69
For example, the commands are asymmetric so that they are always transferred in the direction of the arrow, so you cannot swap devices on either side of the arrow. Further, FIG. IC and FIG. ID are diagrams showing duplex configuration examples, where reference numbers 70, 80, 110 and 120 indicate channels, and reference numbers 90, 100,
130, 140, and 150 indicate IOCs. Conventionally, when performing design evaluation, diagnosis, or operation confirmation, for example,
In figure A, if channel 10 is the target device, interface 2 can be used as a simulator or tester as a substitute for IOC20.
9 must be connected to port 11.

FIG. 2 is a diagram showing a connection form during evaluation, diagnosis, or confirmation (hereinafter simply referred to as diagnosis) of the device according to the present invention.

Figures 2A and 2B are diagrams showing how boats are connected to each other in channels 10 and 30, and Figures 2C, 2D, 2E, and 2F are IOC20, 4
It is a figure which shows the form which connects the boats in 0, 90, and 130 eyes 10C. Figure 2A, Figure 2C and Figure 2E show the form of takoashi connection, Figure 2B, Figure 2D
Figures 1 and 2F are diagrams showing the configuration of the simulator connection. Referring to FIGS. 2E and 2F, IOCs 90 and 130 apply to a multiplexed system of IOCs as shown in IOC 90 in FIG. 1C and IOC 130 in FIG.

Boats 11, 21, 31, 41, 91, 92, 131 and 132 are input/output boats originally provided with each device, and boats 13, 23, 33, 34, 43, 44, 93
and 133 are diagnostic boats provided for diagnostic purposes. Second
Referring to Figure 8, the dotted line of the interface 97 is the boat 9.
This shows that the cables can be changed when diagnosing the boat 92 and when diagnosing the boat 92. Also, if diagnosis of the device selection function is not required, the boats 34 and 44 can be omitted in FIGS. 28 and 2D. FIG. 3 is an enlarged view of channel 10 of FIG. 2A.

Referring to FIG. 3, the two input/output ports 11 and 13 of the channel 10 are shown connected by an external cable 17. Main memory (MM) 1, central processing unit (
CPU) 2 and other input/output boats 15 are all connected to bus 9. Figure 4 shows input/output boat 1 in Figure 3.
1 and 13, each of the boats includes a bus connection section 201, 301, a control section 202, 302, a set of several drive circuits (drivers) 203, 303, and a set of several reception circuits (receivers). 204,304
It consists of

Each of the outputs of the driver 203 is connected to the input of the receiver 304, and each output of the driver 303 is connected to the input of the receiver 20.
4 via cable 17. In addition,
The control circuit 202 is a control circuit as a channel, and the control circuit 302 is a control circuit as an IOC, and they are different circuits. Next, the operation will be explained in detail with reference to FIG.

When diagnosing the boat 11, the C
A command activation instruction is issued from the PU2 as in normal input/output operation. The control circuit 202 interprets this command, knows that a command should be issued, and sets a specific signal to 1 via the driver 203. This means that interface 1
7 to the boat 13. When the control circuit 302 detects the rise of this signal via the receiver 304, the control circuit 302 connects the bus connection section 301 and the bus 9
An interrupt notification is sent to the CPU 2 via. When the CPU 2 is activated by an interrupt, it checks the status of the boat 13 and detects that a signal line (not shown) indicating that a command has been issued is set to 1, indicating that the system is operating satisfactorily. You can check. Next, when the CPU 2 commands the boat 13 to receive the command, the control circuit 302
The command request signal is set to 1 via 03. This request signal is transmitted to the control circuit 20 of the boat 11 via the receiver 204.
2 is detected. The control circuit 202 sends a predetermined command from the CPU 2 to the boat 13 using a predetermined signal sequence on the interface. When the control circuit 302 of the boat 13 receives a command, it stores the received command in an appropriate register (not shown) inside the control circuit 302 and interrupts the CPU 2. When an interrupt occurs, the CPU 2 reads the contents of the register in the boat 13 and learns that the command has been correctly received, that is, the system is operating correctly. Conversely, when reporting the status from the boat 13 to the boat 11, the CPU 2 gives an appropriate status to the boat 13 by command and instructs the boat 13 to send the status. Control circuit 302 of boat 13 sends status to boat 11 using defined signal sequences on the interface. When the control circuit 202 of the boat 11 receives the status, it interrupts the CPU 2 in the same manner as a normal input/output interrupt. The CPU 2 can check whether the system is operating correctly by accepting interrupts and reading the status register of the board 11. The same applies to data transfer. The present invention has the advantage that by providing the ports that the other device should have directly in front of the equipment, it is possible to diagnose the input/output ports and interfaces of the other device.

[Brief explanation of the drawing]

Figures IA to ID show channels and IOCs during normal operation.
2A to 2F are diagrams showing the connection state during diagnosis of the device according to the present invention, and FIG.
FIG. 4 is a diagram showing an embodiment of the present invention. In Figures IA to 4, 10, 30, 70, 80,
110, 120... Channel, 20, 40, 50, 60
,90,100,130,140,150...IOC,
1 1, 21, 31, 41, 51, 51, 71, 72,
81, 82, 91, 92, 101, 102, 111, 1
21, 131, 132, 141, 142, 151, 15
2... Input/output boat, 13, 23, 33, 34
,43,44,93,133...Diagnostic boat, 29,
49, 59, 69, 98, 99, 108, 109, 13
8,139,148,149,158,159...I/O interface, 17,27,36,37,46,4
7, 97, 136, 137...Diagnosis connection cable, 1...MM, 2...CPU, 9...Bus, 1
5...Boat, 20 1,301...
・Bus connection section, 202, 302...control circuit,
203,303...driver, 204,304...
receiver.菟'A 图多'B 图 小子'C 表る 图觉ZA 图 28 和 2C 2D 2E 2F 2F 3 4

Claims (1)

[Claims] 1. In an information processing device having a first port, a second port, and a transmission line for transmitting signals between these ports, the first port is equipped with a central processing unit that decodes a command activation instruction and transmits a signal. the first signal sent to the transmission line;
decoding and sending means provided at the second port; detection notification means provided at the second port to detect a signal from the transmission line and notify the central information processing unit of an interrupt; and detection notification means provided at the second port and from the detection notification means. second decoding and sending means for decoding a command receiving command given from the central processing unit in response to an interrupt notification from the central processing unit and sending a command request signal to the transmission means; command transmitting means for transmitting a command given from the central processing unit to the second port in response to detection of reception of a command request signal from the decoding and transmitting means; An information processing device comprising: command storage means for storing commands from the means.